@charset "utf-8";
/* CSS Document */

body {
	background:url(../images/body_back.jpg);
}
.book_head {
	width:100%;
	height:24px;
	background-image:url(../images/mokume.jpg);
	background-repeat:repeat;
	background-size:1600px 145px;
	position:fixed;
	top:0;
	left:0;
	z-index:10;
}
footer {
	text-align:center;
	margin:15px;
	font-size:66%;
}

.close { width:120px; height:auto; margin:20px auto 20px;}
.close img{ width:100%; height:auto; }

.copy { width:160px; height:auto; margin:20px auto 20px;}
.copy img{ width:100%; height:auto; }

 @media screen and (min-width : 769px) {
.book_img {
	width:640px;
	margin:10px auto;
}
.book_img img {
	display:block;
	margin-bottom:20px;
	width:100%;
	height:auto;
	border:1px solid #2a5792;
}
.book_img img:nth-child(1) {
	margin-top:40px;
}
}
 @media screen and (max-width : 768px) {
.book_img {
	width:76%;
	margin:10px auto;
}
.book_img img {
	display:block;
	margin-bottom:20px;
	width:100%;
	height:auto;
	border:1px solid #2a5792;
}
.book_img img:nth-child(1) {
	margin-top:40px;
}
}


/*480px*/
@media screen and (max-width : 480px) {
.book_img {
	width:92%;
	margin:10px auto;
}
.book_img img {
	display:block;
	margin-bottom:20px;
	width:100%;
	height:auto;
	border:1px solid #2a5792;
}
.book_img img:nth-child(1) {
	margin-top:40px;
}
}